Adjustable chair.



J. F. WALTON. ADJUSTABLE CHAIR.

APPLICATION FILED MAR.29, 1909.

1,079,528. Patented Nov. 25, 1913.

2 SHEETS-SHEET 1.

1 1 '2 Snuontoz wituwom IOLUMBIA ILANOGRAPH 30., WASHINGTON. n r

J. P. WALTON.

ADJUSTABLE CHAIR.

APPLICATION FILED MAR.29, 1909.

1,079,528. Patented Nov. 25, 1913.

2 SHEETS-SHEET mason) 1. Warren, or sruasrsfivircniean.

. ADJUSTABLE cHAIn.

Specification of Letters Patent.

Application filed March 29, 1909. Serial 486,469..

To all whom it may concern:

Be it known that I, JERROLD F. WALTON,

a citizen of the United States, residing at the city of Sturgis, county of St. Joseph, State of Michigan, have invented certain new and useful Improvements in Adjustable.

Chairs, ofwhich the following is a specification.

This invention relates to improvements in adjustable chairs. I i

The main objects of this invention are: First, to provide an improved chair in which the back can be easily adjusted by the occupant of the chair. Second, to provide an improved chair having an adjustable back in which the adjusting mechanism is so arranged as not to disfigure the chair. Third, to provide an improved chair having an adjust-able back which is very simple in its mechanism, and one in which the back, at the same time, is effectively supported.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined andpointed out in the claims.

A structure embodying the features of my invention is clearly lllustrated in the accompanying drawing, forming a part of this specification, in which Figure 1 is detail vertical section of structure embodying the features of my in vention, portions being broken away to better show the arrangement of the parts. Fig. 2 is an inverted plan view thereof. Fig. 3 is an enlarged detail section corresponding to the section of Fig. 1. Fig. 4 is a horizontal section, taken on a line corresponding to line 44: of Fig. 3. Fig. 5 is an enlarged detail taken on a line corresponding to line 55 of Fig. 8. Fig. 6 is an enlarged detail taken on a line corresponding to line 6-6 of Fig. 1, showing the finger piece rod and its arrangement. Fig. 7 is an enlarged detail taken on a line corresponding to line 7-7 of Fig. 6, showing the supporting spring for the release rod. In the drawing, similar reference charac ters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows the ends of the section'lines.

Referrlng to the drawing, the chair f am preferably consists of the posts 1 and Patented Nev. 25, 1913.

the front posts 2, which are extended to form the front and rear legs 'of :thechair. On the upper ends'of the posts are arms 3.

The posts are. connected by the side frame pieces 4 and the front and rear frame pieces 5 and 6, respectively. Theframe is also preferably provided withs'a horizontallyarranged piece 7 for supporting the adjusting mechanism, as appears inFigs. l and 2.

The back ispreferably made up of side pieces or side bars 8 connected-by cross pieces 9. 'The'back is hinged at its lower end, suitable hinge members not illustrated being rovided on the frame for the pivots 11. Tie mechanism for adjustably supporting the back preferably comprises the arm 12, which is preferably secured to the back by'arranging the same vertically through the cross pieces 9 of the back. The arm projects downwardly within the frame piece 6 so that its lower end projects below the frame piece 7 which isprovided with a slot 13 for the arm (see Fig. 1) so that move ment of the arm is permitted. This arrangement of the parts is illustrated and claimed in my application for patent filed concurrently herewith. Connected to the lower end of the armyby means of a suitablepivot, as 14, is a link 15. This link is preferably formed of a strip of sheet metal bent into a U-shape, as is clearly illustrated in Fig. 5. The forward end of the link is adjustably supported by means of the rack 16. This rack is faced upwardly and preferably formed of two members arranged so that the end of the link lies between them. These rack members are preferably formed of one piece of metal bent into a loop, the rear ends being turned'horizontally to form the attaching parts 17, attaching screws 18 being arranged therethrough, as clearly ap pears in Fig. 2. When thussupported, this rack is formed of spring material so that its forward end maybe pushed downwardly to disengage the rackengaging pins 19 of the link 15,- the pins being preferably formed of one piece arranged through the rack, as clearly appears in Fig. 5. r A I preferably provide stop members 20, one

at each side of the rack. These are prefer ably form'ed of pieces of wire, asillustrated, the ends .of the wire being turned upwardly and driven into the frame piece 7.: These.

stops, limit the movement .of the link and insure the withdrawal of the rack from the rack engagingpins 19 of the link The back is held normally forward by means of the springs 21 which are secured at their for- 1 ward ends to the rack engaging pins 19 and at their rear ends to the rear frame'piece 6, screw-eyes, as 22., be1n'g prov1ded=for their connection. These springs are preferably arranged tolift upwardly on the forward end ofthe link so that they tendto withdraw 'the rack engaging members from the rack.w The upward movement of the link is, however, limited by the, frame piece 7 so that, when the rack is in its normal position,

the'springscannot disengage the link therefrom; v

The release rod 23 is secured at one end to one 'ofrtherside pieces 4 of the frame and to the forward end of the rack (see Fig. 2).

The finger piecerod 24 is provided with an eye25 at its lower end to recelve the release rod:,'the upper end of the finger piece rod being arrangedthrough one of the arms 3 of the chair. The finger piece 26 is preferably'in the form of a button and arranged in a countersink 27 (see Fig. 7). The rod is preferably arranged on the inside of the side piece a of the frame, being ofi'set so that c it lies at the rear of .one of the front posts provided with a coil 30, illustrated. The

2 and is thus in an inconspicuous position. The release rod is held yieldingly upward and through the rodthe rack is held yieldingly upward by means of the spring 28. This spring is preferably a rod spring secured at one end by means of the suitable staples, 29, on the inside of one of the frame piecest, its other end being arranged under the release rod. The spring is preferably very convenient to adjust.

Having thus described my invention, what I claim as new and desire to secure by Letters Pa-tent, is a 1. In a chair, the combination with the frame, of a seat; a hinged back; a link having a pivot connection for itsrear end to said back below its hinges and laterally-projec-tingvpins at its forward end; an adjust- I ablerack comprising a pair of members between which-the forward end of said link is arranged; apair of. springs connected to said pins on said link and to said frame ;said springs being arranged to lift upwardly on V the forward end of said link; a pair of stop members arranged on either side of said i rack to embrace said pins on said link; and

means for adjusting said rack to release said link.

L 2. In a chair, the combination with the frame, of a seat; a hinged back; a link having a pivot connection for its rear end to said back below its hinges and laterallyprojecting pins at its forward end; an adjustable rack comprising a pair of members between which the forward end of said link s arranged; a pa1r of springs connected to said pins on said link and to said frame, said springs being arranged to lift upwardly on the forward end of. said link; and means for adjusting said rack to releasesaid link.

1 '3. In a chair, the combination with the frame, of a seat; a hinged back; a link having a pivot connection for its rear end to said back below its hinges and laterallyprojecting pins at its forward end; an adjustable rack comprising a pair of members between which the forward end of said link is arranged; a pair of stop members arranged on either side of said rack to embrace said pins on said link; and means for adjusting said rack to release said link.

4'. In a chair, the combination with the frame, of a seat; a hinged back; a link having a pivot connection for its rear end to said back below its hinges and laterally-projecting pins at its forward end; an adjustable rack comprising a pair of members between which the forward end of said link is arranged; and means for adjusting said rack to release said link.

5. In a chair, the combination with the frame, of a seat; a hinged back; a link having a pivot connection for its rear end to its said back below its hinges, said link being formed of a piece of sheet metal bent into U-shape and having laterallyprojecting pins at its forward end; a rack comprising a pair of members between which the forward end of said link is arranged, said rack being formed of a piece of sheet metal bent into a loop, the rear ends of which are turned horizontally and secured to said frame, whereby said rack is adjustably supported; and means for adjusting said rack to release said link.

,6. In a chair, the combination with the frame, of a seat, a hinged back; a link having a pivot connection for its rear end to said back below its hinges having laterallyprojecting pins at its forward end; a rack comprising a pair of m embersbetween which the forward end of said link is arranged, said rack being formed of a piece of sheet metal bent in a loop, the rear ends of which are turned horizontally and secured to said frame, whereby said rack is adjustably supported; and means for adjusting said rack to release said link.

7 In a chair, the combination with the frame, of a seat; a hinged back; a link having a pivot connection for its rear end to said back below its hinges, said link being formed of a piece of sheet metalbent into a U-shape and having laterally projecting arms at its forward end; and a rack comprising a pair of members between which the forward end of said link is arranged, and means for adjusting said rack to release said link.

8. In a chair, the combination with the frame, of a seat, a hinged back; a link having a pivot connection for its rear end to said back below its hinge, having laterallyprojecting pins at its forward end; and a rack comprising a pair of members between which the forward end of said link is arranged, and means for adjusting said rack to release said link.

9. In an arm chair, the combination with the frame, of a hinged back; a downwardlyprojecting arm on said back; an adjustable rack; a link having a rack engaging member at its forward end pivoted on said arm; a transversely-arranged release rod for said rack connected to said rack and to said frame at one end; a spring for holding the other end of said rod yieldingly upward; and a finger piece rod for said release rod arranged through an arm of the chair and within said frame, said finger piece rod being provided with a finger piece arranged in a countersink in the said arm.

10. In an arm chair, the combination with the frame, of a hinged hack; a downwardlyprojecting arm on said back; an adjustable rack; a link having a rack engaging mem her at its forward end pivoted on said arm; a transversely-arranged release rod for said rack connected to said rack and to said frame at one end; a spring for holding the other end of said rod yieldingly upward; and a finger piece rod for said release rod arranged through an arm of the chair.

In Witness whereof, I have hereunto set my hand and sea] in the presence of two witnesses.

JERROLD F. WALTON. 1; s.]

Witnesses CLORA E. BRADEN, GER'rRUDE TALLMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

